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Contract OI history

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Oct 30, 2026 EXPIRATION

ZS $217.50 Put

ZS261030P00217500

Latest saved OI467Oct 23, 2026
Last change+294vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $217.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4672330 2026-10-09: 56 OI2026-10-12: 180 OI2026-10-14: 180 OI2026-10-15: 180 OI2026-10-16: 180 OI2026-10-21: 173 OI2026-10-23: 467 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ZS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026467+294
Oct 21, 2026Viewing173-7
Oct 16, 20261800
Oct 15, 20261800
Oct 14, 20261800
Oct 12, 2026180+124
Oct 09, 202656No prior observation